| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] | 430262 |
|
| 2 | [vb pp] [prep] [noun] | 279897 |
|
| 3 | [vb pp] [prep] a | 97581 |
|
| 4 | [vb pp] a [noun] | 34350 |
|
